Stepping in Place While Voluntarily Turning Around Produces a Long-Lasting Posteffect Consisting in Inadvertent Turning While Stepping Eyes Closed

Figure 5

Cadence (a), duration of stance period (b), and height of feet lifting (c) during Pod Stim, Vol Turn, and the two posteffects. Cadence was not different between Vol Turn and Pod Stim but different between pre- and posteffects. The stance period (b) was somewhat longer during voluntary turning than during Pod Stim. Filled bars refer to the foot corresponding to the direction of rotation (right foot); striped bars refer to the foot opposite to the direction of rotation (left foot). There were no differences in height of feet lifting (c) between Vol Turn and Pod Stim or between the two posteffects. indicates significant difference () between mean cadences (a) and mean stance period durations (b).

(a)

(b)

(c)